Eraser.



W. B. PERSHiNG.

- ERASER.

APPLICATION man :uw 1s. |911..

WALTER B. PERSHING, OF SOUTH BEND, INDIANA.

ERASER.

Specication of Letters Patent.

Patented Nov. 2'?, fllt t..

Application iled July 13, 1917. Serial No. 180,357.

To all whom t may concern.'

Be it known that I, IALTER B. PERSHING, a citizen of the United States, residing at `South Bend, in the county of St. Joseph and State of Indiana, have invented certain new and useful Improvements in Erasers, of which the following is a specification.

The invention relates to erasers adapted particularly for the purpose of rubbing out or effacing pencil or ink markings or the like,

and the object of the invention resides in the provision of an eraser which is more particularly adapted for use in erasing typewritten matter, and which is provided with means for attaching or suspending the same on the frame of the typewriter, so that the samemay always be in handy position for instant use. A further object of the invention resides in providing an eraser with means for attaching same to a typewriter frame, which means will permit the eraser to be easily and quickly attached and detached from the frame, and which means and eraser are Vso connected as to permit relative rotary movement therebetween, whereby the attaching means will not interfere with the full use of the entire erasing surface of the eraser.

4The invention in the preferred form of details will be described in the `following specification, reference being had particularly to the accompanying drawings, in whiehz* Figure l is a perspective view of a typewriter illustrating the manner in which the improved eraser may be attached to the frame thereof.

Fig. 2 is a side elevation of the eraser.

Fig. 3 is a similar view showing the reverse side thereof.

Fig. 4 is an edge view thereof showing the center spindle in broken away section.

In the embodiment of the invention, I prefer to use an erasing member 1 of disklike form, and having a comparatively thin erasing edge 2, whereby an erasure may be made within a narrow space if so desired. The eraser may be made of any material suitable for the purpose.

Extending through an opening 3 centrally of the eraser is a spindle 4, to the ends of which, and abutting the opposite sides of the eraser, are attached sheet metal disks 5 *Eames of this patentmay be obtained `for ve cents each, by addressing the of considerably less diametrical dimension than that of the eraser, the said spindle and disks in effect forming a spool upon which the eraser is free to rotate. rIhe spindle 4 preferably consists of a length of metallic tubing, the outer ends of which are upset or swaged laterally, as at 6, to prevent outward displacement of the disks 5. Integrally formed and extending edgewise of one of the disks 5, is a hook-shaped member 7, the free end 8 of which is spaced from the body thereof a sufficient distance to fit over the edge of a typewriter frame, as illustrated in Fig. l. The hook 7 being of iieXible sheet metal, the free end thereof will yield and bind against the sides of the typewriter frame, thus securely holding same against movement due to vibration in the operation of the typewriter.

It will be apparent from the foregoing description that I have provided an eXceedingly useful eraser structure, which may be easily and quickly attached and detached from the typewriter frame, and which may always be placed and located where same will be readily at hand for instant use. It will also be apparent that, as a relative rotary movement is permitted between the eraser and the attaching or suspending hook, the eraser may be turned from time to time with relation to the hook, and the full edge of the eraser utilized.

While the foregoing is the preferred form of my invention, I desire it to be understood that I do not limit myself to the precise structure shown and described, as it is obviousv that the same may be variously modified without departing from the spirit of the invention.

What is claimed is 1. An eraser comprising a spool, and an erasing element mounted on the spool for rotative movement, one of the spool ends having an edgewise extension and return bent to form a suspending hook.

2. An eraser comprising a spool having a spindle, and disk-like end members, and an erasing element rotatively mounted on the spindle between said end members, one of said end members having a yielding edge` wise hook-shaped extension.

In testimony whereof I affix my signature.

WALTER B. PERSHING.

Commissioner of Patents.

Washington. D. C. 

